linux-kernel - Re: [PATCH] acpi: update struct acpi_table

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Message-ID: <20150609091757.GB4968@jsakkine-mobl1>
Date:	Tue, 9 Jun 2015 12:17:57 +0300
From:	Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
To:	"Moore, Robert" <robert.moore@...el.com>
Cc:	"Zheng, Lv" <lv.zheng@...el.com>,
	"Wysocki, Rafael J" <rafael.j.wysocki@...el.com>,
	Len Brown <lenb@...nel.org>,
	"open list:ACPI COMPONENT AR..." <linux-acpi@...r.kernel.org>,
	"open list:ACPI COMPONENT AR..." <devel@...ica.org>,
	open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] acpi: update struct acpi_table_tpm2

On Mon, Jun 08, 2015 at 08:52:02PM +0000, Moore, Robert wrote:
> It looks like there is a change to the TCPA table also.

Right. I'll update that too.

I strongly think that the struct acpi_tpm2_control should not be in
actbl3.h. It is not defined in the TCG ACPI specification. It is
defined in

http://www.trustedcomputinggroup.org/resources/pc_client_platform_tpm_profile_ptp_specification

FIFO control structures are internal for to the TPM subsystem and so
should be CRB control structures (and we have already inside tpm_crb.c).

The structure ended up there probably because it was combined with the
TPM2 table in that Microsoft specification.

/Jarkko
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